Ike (Artist), IDEA FACTORY, DESIGN FACTORY, Otomate, Shirahana no Ori ~Hiiro no Kakera 4~ Official Visual Fan Book, Shirahana no Ori ~Hiiro no Kakera 4~, Ugaya Shiki, Kuuso no Mikoto, Leaning, Grass Field, Field, Bushes, Scarlet Fate: Fragments Of The Past